Emotional changes occur in a person causing physiological changes that can be recognized and diagnosed.
A person's fears, anxieties and apprehensions are focused (directed) to the areas that hold (poses) the greatest threat to his/her well-being of self.
The test is structured so as to pose a threat to the security of both the innocent and guilty subject and force him/her to focus (direct) his/her attention to that specific area during the cause of the testing.
- Abdominal and thoracic breathing (pneumograph tubes)
- Cardio-Vascular changes (blood pressure cuff)
- Galvanic skin resistance (finger plates)
- Data Quality
The computerized instrument has a high sensitivity to physiological responses and the ability to preserve the integrity of the original examination.
- Display and Print Characteristics
The computerized instrument provides clarity of tracings, flexibility of review and ease of analysis and a rich set of display options. Polygraph Examiners can adjust chart width, height and colour, line thickness and gridding. Charts can be stacked for comparison purposes, etc. Data can be adjusted during replay without altering the original results.
- Storage and Retrieval
The Lafayette LX 400 Polygraph Instrument provides the facility of storage and retrieval of charts, reports, question lists and other material. This simplifies the transfer of information to supervisors, other examiners, attorneys etc. Examinations can be stored on diskettes or on a hard drive. All data including charts, reports and questions are immediately available and can be transferred instantaneously, using fax/modem or similar technology. An unlimited number of original charts can be printed. Examination information may be viewed at any time using the computer's monitor. Details of examinees and times of tests are recorded automatically on each chart.
A typical polygraph examination will include periods referred to as a pre-test phase, a chart collection phase (in-test phase), post-test phase and a test analysis phase. This procedure usually takes 1 to 2 hours.
- The Examiner will inform each subject of the academic qualifications and practical experience.
- The examinee's understand that they are not guilty of any offence and have the unqualified right to consult with council prior to the examination.
- The examinee's take the test once they have consented to be examined.
- The examinee's physiological and psychological suitability to undergo the test will be evaluated.
- An objective appraisal of the examinee's personality through verbal and nonverbal responses to a variety of questions will be conducted.
- The proper psychological conditioning of each examinee will be ensured so as to obtain clear and conclusive test results.
- The examinee's will be informed of the nature and characteristics of the instrument and examination.
- All question formulation will be reviewed with the subjects at length, to ensure that the subjects clearly understand the questions that we intend to put to them.
- The proceedings will be recorded on video and audio, as prescribed by the American Polygraph Association and the South African Polygraph Association.
During the chart collection phase, the examiner will administer the examination and collect a number of polygraph charts. No questions will be asked during the examination that has not been discussed and reviewed with the examinee.
In the post-test phase, the examiner will analyse the charts and render an opinion as to the truthfulness of the person taking the test. The examiner, when appropriate, will offer the examinee the opportunity to explain physiological responses in reaction to any questions asked during the examination.
DID YOU KNOW?
The majority of losses are due to theft by employees or the direct / indirect involvement by employees in thefts.
There is an effective way to combat dishonesty and company theft:
Every company wants to trust their employees, but rarely can. Now it is possible to build this trust.
Do your loyal employees this favour:
- Employ the right people.
- Identify the guilty parties.
- Prevent future losses.
- Polygraph Testing will ensure that the right people are employed.
- Effectively identify deceptive individuals.
- Expose syndicates and future threats.
- Create a culture of integrity in your company.
Here are the facts:
The spiral of criminal activity in and out of the workplace has increased dramatically as the crime rate escalates and crime in the workplace increases.
The admissibility of polygraph testing within the employment relations context in South Africa is seen as a critical issue.
South African employers are increasingly turning to polygraph testing as a means of, not only to detect dishonesty in the workplace, but also in the hope that pre-employment and in-employment screening will prevent, or at least determine, theft and fraud discovery and syndicate crime.
There is a widespread of polygraph testing particularly in the information technology, retail, security, mining and banking industry.
The polygraph is seen to be a quick and cost-effective tool in the fight against crime within the working environment.